The answer to 'average cost of roof decking' is that the cost can vary significantly depending on several factors. Roof decking, which is the base layer that supports the roof shingles, is typically made of plywood, oriented strand board (OSB), or other materials. The average cost for roof decking can range from $2 to $6 per square foot, but this can be influenced by the type of material, the size of the roof, the complexity of the installation, and your location.
Factors that can affect the cost of roof decking include the quality of the material, the thickness, the span between roof trusses or joists, and any special requirements or customizations needed for your home. Additionally, the cost of labor and any necessary permits or inspections can also impact the overall price. It's essential to get multiple quotes from local roofing contractors to get an accurate estimate for your specific project.